Alma Mater Studiorum-Universitá Di Bologna

Universitá Degli Studi Di Cagliari

Giuseppe Usai

Isacco Gualandi

Beatrice Fraboni

Erika Scavetta

Annalisa Bonfiglio

Danilo Pani

Marta Tessarolo

Eleonora Sulas

Giuseppe Arnaldo Usai

The invention provides a composition for a conductive polymeric material suitable for the production of electrodes for recording electrophysiological signals, such as electrocardiogram (EGG), electromyogram (EMG), electroencephalogram (EEG), etc., and signals related to the impedance variation of the body or skin, both deriving from active and passive measures (for example, breathing, electrodermal response, etc.). For this purpose a formulation containing FEDOT and ionic liquids has been developed. The formulation according to the invention can be used generically in the context of detecting bioelectric signals and can be applied on wearable items, in particular in fabric, such as for example garments of different shapes, so as to be in direct contact with the areas of the body subject to detection. The artifacts include diving artefacts, such as watertight suits, and for water sports and submarine surveys, artifacts used in the medical and health sector such as plasters, elastic support bands and adhesive support bands and textile articles, including special fabrics such as bioceramics.

Conductive polymeric composition and method for preparing the conductive polymeric composition

The present invention relates to an organic electrochemical transistor based on conducting polymers (for example PEDOT:PSS) in which the gate electrode has been integrated on the surface of the channel through the deposition of Ag halide nanoparticles, AgX (X&#x2550;CI, Br, I). This configuration allows the device to operate without applying a potential difference to the gate electrode (with consequent reduction in operating costs). The device is able to detect the halide ion: by varying the nature of the nanoparticles and in particular by using AgX (X&#x2550;CI, Br, I) or Ag2S the sensor acquires sensitivity towards anion X or sulfide.

Organic electrochemical transistor based on conductive polymer and Ag, AgX (X = Cl, I, Br) halide nanoparticles, as chemical sensor

Growing community of inventors

Bologna, Italy

Isacco Gualandi